1 files changed, 0 insertions, 96 deletions
diff --git a/sw/programmer/avr/usart.h b/sw/programmer/avr/usart.h
deleted file mode 100644
index 0cf85f2..0000000
--- a/sw/programmer/avr/usart.h
+++ /dev/null
@@ -1,96 +0,0 @@
-#ifndef __USART_H__
-#define __USART_H__
-/*** 
- * USART REGISTERS {{{
- *
- * UCSR: control and status regisers, composed from 3 registers:
- *  +------------------------------------------------------------------------+
- *  | UCSRA :| RXC   | TXC   | UDRE  | FE    | DOR   | PE    | U2X   | MPCM  | 
- *  +------------------------------------------------------------------------+
- *   UCSRA is a status register (read only)
- *   Relevant bits:
- *       - RXC : set to 1 if data is present on the receive buffer
- *       - TXC : set to 1 when data is transferred to the transfer register 
- *       - UDRE: set to 1 when trasmit buffer is empty (data sent)
- *  +------------------------------------------------------------------------+
- *  | UCSRB :| RXCIE | TXCIE | UDRIE | RXEN  | TXEN  | UCSZ2 | RXB8  | TXB8  | 
- *  +------------------------------------------------------------------------+
- *   UCSRB is used to setup hardware configuration
- *   Relevant bits:
- *       - RXCIE: RX complete interrupt enabled when set to 1
- *       - TXCIE: TX complete interrupt enabled when set to 1
- *       - UDRIE: data register empty interrupt enabled when set to 1
- *       - RXEN : uart receiver enabled  when set to 1
- *       - TXEN : uart transmitter enabled when set to 1
- *  +------------------------------------------------------------------------+
- *  | UCSRC :| URSEL | UMSEL | UPM1  | UPM0  | USBS  | UCSZ1 | UCSZ0 | UCPOL | 
- *  +------------------------------------------------------------------------+
- *   UCSRB is used to setup protocol configuration
- *   Relevant bits:
- *       - URSEL: register select (location is shared with UBRRH and UCSRC)
- *       - UMSEL: mode select
- *              1 -> synchronous
- *              0 -> asynchronous
- *       - UMP1 + UPM0: set parity
- *              00 -> no parity
- *              01 -> reserved
- *              10 -> even
- *              11 -> odd
- *       - UCSZ2 + UCSZ1 + UCSZ0: set data frame (char size)
- *              000 -> 5 bit
- *              001 -> 6 bit
- *              010 -> 7 bit
- *              011 -> 8 bit
- *              100 to 110 -> reserved
- *              111 -> 9 bit
- *
- * UBRR: baudrate register
- *  +------------------------------------------------------------------------+
- *  | UBRRH :| URSEL |       |       |       | UBRR11| UBRR10| UBRR9 | UBRR8 | 
- *  +------------------------------------------------------------------------+
- *  | UBRRL :| UBRR7 | UBRR6 | UBRR5 | UBRR4 | UBRR3 | UBRR2 | UBRR1 | UBRR0 | 
- *  +------------------------------------------------------------------------+
- *    UBRR is composed of 2 8 bit registers to store a 12 bit baudrate value.
- *    The value to be stored in this register is calculated with the following
- *    formula (approximate to integer):
- *       UBRR = ( XTAL_frequency ) / ( 16 * BAUDRATE ) -1
- *
- *    in C code corresponds to:
- *       #define USART_BAUDRATE 9600
- *       #define BAUD_PRESCALE (((F_CPU / (USART_BAUDRATE * 16UL))) - 1)
- *
- *    Relevant bits:
- *       - URSEL: register select (location is share with UCSRC)
- *
- * UDR : data register
- *   This register is shared between RX and TX
- *
- * }}}
- */
-
-#include <stdint.h>
-#include <stdlib.h>
-
-#include <avr/io.h>
-
-#define USART_TIMEOUT   50000
-
-// struct usart_conf
-// {
-//     uint16_t baudrate;
-// };
-
-void usart_init(uint16_t baudrate);
-// void usart_init_conf(struct usart_conf *conf);
-
-void usart_send_byte(uint8_t data);
-void usart_send(uint8_t *data, size_t len);
-
-void usart_print(char *str);
-
-int usart_read_byte(uint8_t *byte);
-uint8_t usart_read_byte_nt(void);
-size_t usart_read(uint8_t *buffer, size_t len);
-int uart_read_line(uint8_t *buffer, size_t len);
-
-#endif